/*
 * Copyright (c) 2022 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import {Utility} from'./Utility.js';
import {XMLNode} from'./XMLNode.js';
import {NodeType} from'./NodeType.js';

let hasProp = {}.hasOwnProperty;
let extend = function (child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; }

// export function XMLDeclaration(superClass) {
  extend(XMLDeclaration, XMLNode);

  function XMLDeclaration(parent, version, encoding, standalone) {
    var ref;
    XMLDeclaration.__super__.constructor.call(this, parent);
    if (Utility.isObject(version)) {
      ref = version, version = ref.version, encoding = ref.encoding, standalone = ref.standalone;
    }
    if (!version) {
      version = '1.0';
    }
    this.type = NodeType.Declaration;
    this.version = this.stringify.xmlVersion(version);
    if (encoding != null) {
      this.encoding = this.stringify.xmlEncoding(encoding);
    }
    if (standalone != null) {
      this.standalone = this.stringify.xmlStandalone(standalone);
    }
  }

  XMLDeclaration.prototype.toString = function(options) {
    return this.options.writer.declaration(this, this.options.writer.filterOptions(options));
  };

//   return XMLDeclaration;

// }(XMLNode);
export { XMLDeclaration }
